Question

我需要MonoDroid中当前设置的屏幕方向。它必须检测它是横向，纵向还是反向横向和反向纵向。

WindowManager.DefaultDisplay.Rotation等方法并不总能返回正确的结果。

Answer 1

我在这里找到了用Java编写的答案：How do I get the CURRENT orientation (ActivityInfo.SCREEN_ORIENTATION_*) of an Android device?

这是相应的MonoDroid C＃翻译：

private ScreenOrientation GetScreenOrientation() {
    ScreenOrientation orientation;
    SurfaceOrientation rotation = WindowManager.DefaultDisplay.Rotation;

    DisplayMetrics dm = new DisplayMetrics();
    WindowManager.DefaultDisplay.GetMetrics(dm);

    if ((rotation == SurfaceOrientation.Rotation0 || rotation == SurfaceOrientation.Rotation180) && dm.HeightPixels > dm.WidthPixels
        || (rotation == SurfaceOrientation.Rotation90 || rotation == SurfaceOrientation.Rotation270) && dm.WidthPixels > dm.HeightPixels) {
        // The device's natural orientation is portrait
        switch (rotation) {
            case SurfaceOrientation.Rotation0:
                orientation = ScreenOrientation.Portrait;
                break;
            case SurfaceOrientation.Rotation90:
                orientation = ScreenOrientation.Landscape;
                break;
            case SurfaceOrientation.Rotation180:
                orientation = ScreenOrientation.ReversePortrait;
                break;
            case SurfaceOrientation.Rotation270:
                orientation = ScreenOrientation.ReverseLandscape;
                break;
            default:
                orientation = ScreenOrientation.Portrait;
                break;
        }
    } else {
        // The device's natural orientation is landscape or if the device is square
        switch (rotation) {
            case SurfaceOrientation.Rotation0:
                orientation = ScreenOrientation.Landscape;
                break;
            case SurfaceOrientation.Rotation90:
                orientation = ScreenOrientation.Portrait;
                break;
            case SurfaceOrientation.Rotation180:
                orientation = ScreenOrientation.ReverseLandscape;
                break;
            case SurfaceOrientation.Rotation270:
                orientation = ScreenOrientation.ReversePortrait;
                break;
            default:
                orientation = ScreenOrientation.Landscape;
                break;
        }
    }

    return orientation;
}

这是一个简单而常见的任务的代码，但它完美无缺。

在MonoDroid中获取当前屏幕方向

1 个答案: